<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<h1>frame2</h1>
<a href="./project/index1.html" target="frame3">1</a><br/><br/><br/>
<a href="./project/index2.html" target="frame3">2</a><br/><br/><br/>
<a href="./project/index3.html" target="frame3">3</a><br/><br/><br/>
</body>
</html>